import random
import sys
from optparse import OptionParser

def readFile(filename):
	"""Given a filename, read the contents of that file.
	"""
	try:
		f = open(filename)
	except IOError:
		print "File does not exist. Please pick another."
		sys.exit()
	line = ''
	book = []

	while 1==1:
		line = f.readline()
		if line != '':
			if line != '\n':
				book.append(line)
		else:
			break
	f.close()
	return book

def printBookPars(book, n):
	for i in range (n):
		print book[random.randrange(0,len(book))]
	return

def printListLines(book, n):
       	for i in range (n):
		print book[random.randrange(0,len(book))].replace("\n","")
	return

if __name__=='__main__':
	parser = OptionParser()
	parser.add_option("-b", "--book", dest = "book", default="cthullu.txt", help = "The name of the file you'd like to have read in.", metavar="BOOK.txt")
	parser.add_option("-p", "--paragraphs", dest = "paragraphs", default=1, help = "The number of paragraphs you'd like to generate.", metavar="#")
	parser.add_option("-l", "--list", dest = "list", default = -1, help="Indicates that you want a list of items, and how many items you would like.", metavar = "#")
	opts = parser.parse_args()
	options = opts[0]

options.paragraphs = int(options.paragraphs)

if options.list != -1:
	options.book = "cummings.txt"
	options.paragraphs = int(options.list)

book = readFile(options.book)

if options.list ==-1:
	printBookPars(book, options.paragraphs)
else:
	printListLines(book, options.paragraphs)


	

